StreamWriter Constructor (String)
Microsoft Silverlight will reach end of support after October 2021. Learn more.
When it is called by trusted applications, initializes a new instance of the StreamWriter class for the specified file on the specified path, using the default encoding and buffer size.
Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public Sub New ( _
path As String _
)
public StreamWriter(
string path
)
Parameters
- path
Type: System.String
The complete file path to write to. path can be a file name.
Exceptions
| Exception | Condition |
|---|---|
| UnauthorizedAccessException | Access is denied. |
| ArgumentException | path is an empty string (""). -or- path contains the name of a system device (com1, com2, and so on). |
| ArgumentNullException | path is nulla null reference (Nothing in Visual Basic). |
| DirectoryNotFoundException | The specified path is invalid; for example, it might refer to an unmapped drive. |
| PathTooLongException | The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters. |
| IOException | path includes an incorrect or invalid syntax for file name, directory name, or volume label syntax. |
| SecurityException | The caller does not have the required permission. |
Remarks
Platform Notes
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Silverlight for Windows Phone
This member has a SecurityCriticalAttribute attribute on Silverlight for Windows Phone, because the attribute was present in Silverlight 3. This attribute restricts this member to internal use. Application code that uses this member throws a MethodAccessException.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.